Re: Not able to control Brightness in my VAIO CW15FG laptop

Before installing nvidia drivers from software-properties-gtk, I had problem when ubuntu starts..
I get a plain purple screen after which I get the login screen.
While shut down I get the usual Ubuntu screen (the purple screen with Ubuntu written and an animation indicating that shutdown /restart process is going on)

After installing the nvidia drivers, I get a text "Ubuntu 12.10" with no loading animation. and sometimes I get it with a black background on it. And while shutting down, I just get my screen blanked. No acknowledgement about the Ubuntu getting shut down. I've to to look at the Power LED to make sure my PC is turned off...

Re: Not able to control Brightness in my VAIO CW15FG laptop

Originally Posted by wizardvenkat

Before installing nvidia drivers from software-properties-gtk, I had problem when ubuntu starts..
I get a plain purple screen after which I get the login screen.
While shut down I get the usual Ubuntu screen (the purple screen with Ubuntu written and an animation indicating that shutdown /restart process is going on)

After installing the nvidia drivers, I get a text "Ubuntu 12.10" with no loading animation. and sometimes I get it with a black background on it. And while shutting down, I just get my screen blanked. No acknowledgement about the Ubuntu getting shut down. I've to to look at the Power LED to make sure my PC is turned off...

Is that something to do with/related to the brightness issue ???

More likely its related to the install of the nvidia drivers. Unfortunately, I don't have an nvidia card and can't comment. You might want to create another thread afterwards to discuss that issue.

In the meantime, does that command change the screen brightness for you?

Re: Not able to control Brightness in my VAIO CW15FG laptop

Thanks a lot Toz !!
Everything works fine now...
The hot keys and the GUI control.
But still I don't know why my Brightness resets to maximum when I open Firefox or Thunderbird ?
It does not happen if I open other softwares..